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Marine Organism - 2 Video Lecture - Famous Books for UPSC Exam (Summary & Tests)

521 videos|968 docs|446 tests

FAQs on Marine Organism - 2 Video Lecture - Famous Books for UPSC Exam (Summary & Tests)

1. What are marine organisms?
Ans. Marine organisms are living organisms that inhabit the oceans or other saltwater environments. They can range from microscopic bacteria and plankton to large animals like whales and sharks. These organisms have adapted to survive in the unique conditions of the marine environment.
2. How do marine organisms obtain oxygen?
Ans. Marine organisms obtain oxygen through a process called respiration. Most marine organisms have specialized structures, such as gills or lungs, that allow them to extract oxygen from the water. Some smaller organisms, like plankton, can absorb oxygen directly through their cell membranes.
3. What is the importance of marine organisms?
Ans. Marine organisms play a crucial role in maintaining the health and balance of marine ecosystems. They serve as a food source for other organisms, help recycle nutrients, produce oxygen, and contribute to the overall biodiversity of the ocean. Additionally, many marine organisms provide valuable resources for human use, such as food, medicine, and raw materials.
4. How do marine organisms adapt to the ocean environment?
Ans. Marine organisms have developed various adaptations to survive in the ocean environment. Some have streamlined bodies or fins for efficient swimming, while others have protective shells or camouflage to avoid predators. Many marine organisms have also adapted to withstand extreme temperatures, high pressure, and low light conditions in the deep sea.
5. What are some examples of marine organisms?
Ans. There are countless examples of marine organisms, but some common ones include fish, coral reefs, sea turtles, jellyfish, dolphins, whales, seahorses, and various types of algae. Each of these organisms plays a unique role in the marine ecosystem and contributes to the biodiversity of the oceans.
521 videos|968 docs|446 tests
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